merge xorg-server 21.1.18.

merge xorg-server 21.1.16.

merge xorg-server 21.1.14.

merge xorg-server 21.1.13.

merge xorg-server 21.1.9.

updates for xorg-server 21.1.8.

merge xorg-server 21.1.7.

merge xorg-server 21.1.6.

merge xorg-server 1.21.1.5

update for xorg-server 21.1.4.

update these for xorg-server 21.1.3.

updates for xorg-server 1.20.13.

merge xorg-server 1.20.12 and xkeyboard-config 2.33.

update for xorg-server 1.20.11.

bump version for xorg-server 1.20.10.

updates for xorg-server 1.20.6.

merge xorg-server 1.20.5.

merge xorg-server 1.20.4.

define HAVE_BACKTRACE 1. now X server crashes have backtraces in the log.

merge xorg-server 1.20.3.

NetBSD calls it x86_86_iopl().

disable iopl in xorg-config.h as it is set in the reachover makefile.

update for xorg-server 1.18.4.

update for xorg-server 1.10.6.

updates for xorg-server 1.10.3.

updates for xorg-server 1.9.5

update these for xorg-server 1.9.2

update for xorg-server 1.6.5

update for xorg-server 1.6.3.

update these for xorg-server 1.6.2.

fix paths with /usr/local in them

update these with xorg-server 1.6.1.901 versions.

i386_iopl() is used on x86_64 as well, as in the x86_64 case,
the source does:

#define i386_iopl x86_64_iopl

Therefore, we need USE_I386_IOPL defined for this architecture.

only define _XSERVER64 if _LP64

XXX don't define USE_I386_IOPL

add a bunch of generated files.

XXX mknative-xorg!